/* $NetBSD: if_le_isa.c,v 1.49 2010/11/13 13:52:03 uebayasi Exp $ */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace * Simulation Facility, NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)if_le.c 8.2 (Berkeley) 11/16/93 */ #include __KERNEL_RCSID(0, "$NetBSD: if_le_isa.c,v 1.49 2010/11/13 13:52:03 uebayasi Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int ne2100_isa_probe(device_t, cfdata_t, void *); int bicc_isa_probe(device_t, cfdata_t, void *); void le_dummyattach(device_t, device_t, void *); int le_dummyprobe(device_t, cfdata_t, void *); void le_ne2100_attach(device_t, device_t, void *); void le_bicc_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(nele, 0, ne2100_isa_probe, le_dummyattach, NULL, NULL); CFATTACH_DECL_NEW(le_nele, sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach, NULL, NULL); CFATTACH_DECL_NEW(bicc, 0, bicc_isa_probe, le_dummyattach, NULL, NULL); CFATTACH_DECL_NEW(le_bicc, sizeof(struct le_softc), le_dummyprobe, le_bicc_attach, NULL, NULL); struct le_isa_params { const char *name; int iosize, rap, rdp; int macstart, macstride; } ne2100_params = { "NE2100", 24, NE2100_RAP, NE2100_RDP, 0, 1 }, bicc_params = { "BICC Isolan", 16, BICC_RAP, BICC_RDP, 0, 2 }; int lance_isa_probe(struct isa_attach_args *, struct le_isa_params *, int); void le_isa_attach(device_t, struct le_softc *, struct isa_attach_args *, struct le_isa_params *); int le_isa_intredge(void *); #if defined(_KERNEL_OPT) #include "opt_ddb.h" #endif #ifdef DDB #define integrate #define hide #else #define integrate static inline #define hide static #endif hide void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); hide uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); #define LE_ISA_MEMSIZE 16384 hide void le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; bus_space_write_2(iot, ioh, lesc->sc_rap, port); bus_space_write_2(iot, ioh, lesc->sc_rdp, val); } hide uint16_t le_isa_rdcsr(struct lance_softc *sc, uint16_t port) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; uint16_t val; bus_space_write_2(iot, ioh, lesc->sc_rap, port); val = bus_space_read_2(iot, ioh, lesc->sc_rdp); return (val); } int ne2100_isa_probe(device_t parent, cfdata_t cf, void *aux) { return (lance_isa_probe(aux, &ne2100_params, cf->cf_flags)); } int bicc_isa_probe(device_t parent, cfdata_t cf, void *aux) { return (lance_isa_probe(aux, &bicc_params, cf->cf_flags)); } /* * Determine which chip is present on the card. */ int lance_isa_probe(struct isa_attach_args *ia, struct le_isa_params *p, int flags) { bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; int rap, rdp; int rv = 0; if (ia->ia_nio < 1) return (0); if (ia->ia_nirq < 1) return (0); if (ia->ia_ndrq < 1) return (0); if (ISA_DIRECT_CONFIG(ia)) return (0); /* Disallow wildcarded i/o address. */ if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) return (0); if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) return (0); if ((flags & LANCEISA_FLAG_LOCALBUS) == 0 && ia->ia_drq[0].ir_drq == ISA_UNKNOWN_DRQ) return (0); /* Map i/o space. */ if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) return (0); rap = p->rap; rdp = p->rdp; /* Stop the LANCE chip and put it in a known state. */ bus_space_write_2(iot, ioh, rap, LE_CSR0); bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); delay(100); bus_space_write_2(iot, ioh, rap, LE_CSR0); if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) goto bad; bus_space_write_2(iot, ioh, rap, LE_CSR3); bus_space_write_2(iot, ioh, rdp, 0); ia->ia_nio = 1; ia->ia_io[0].ir_size = p->iosize; ia->ia_nirq = 1; if ((flags & LANCEISA_FLAG_LOCALBUS) != 0 && ia->ia_drq[0].ir_drq == ISA_UNKNOWN_DRQ) ia->ia_ndrq = 0; else ia->ia_ndrq = 1; ia->ia_niomem = 0; rv = 1; bad: bus_space_unmap(iot, ioh, p->iosize); return (rv); } void le_dummyattach(device_t parent, device_t self, void *aux) { aprint_normal("\n"); config_found(self, aux, 0); } int le_dummyprobe(device_t parent, cfdata_t cf, void *aux) { return (1); } void le_ne2100_attach(device_t parent, device_t self, void *aux) { struct le_softc *lesc = device_private(self); struct lance_softc *sc = &lesc->sc_am7990.lsc; sc->sc_dev = self; le_isa_attach(parent, lesc, aux, &ne2100_params); } void le_bicc_attach(device_t parent, device_t self, void *aux) { struct le_softc *lesc = device_private(self); struct lance_softc *sc = &lesc->sc_am7990.lsc; sc->sc_dev = self; le_isa_attach(parent, lesc, aux, &bicc_params); } void le_isa_attach(device_t parent, struct le_softc *lesc, struct isa_attach_args *ia, struct le_isa_params *p) { struct lance_softc *sc = &lesc->sc_am7990.lsc; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; bus_dma_tag_t dmat = ia->ia_dmat; bus_dma_segment_t seg; int i, rseg, error; aprint_normal(": %s Ethernet\n", p->name); if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) panic("%s: can't map io", device_xname(sc->sc_dev)); /* * Extract the physical MAC address from the ROM. */ for (i = 0; i < sizeof(sc->sc_enaddr); i++) sc->sc_enaddr[i] = bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); lesc->sc_iot = iot; lesc->sc_ioh = ioh; lesc->sc_dmat = dmat; lesc->sc_rap = p->rap; lesc->sc_rdp = p->rdp; /* * Allocate a DMA area for the card. */ if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { aprint_error_dev(sc->sc_dev, "couldn't allocate memory for card\n"); return; } if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, (void **)&sc->sc_mem, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { aprint_error_dev(sc->sc_dev, "couldn't map memory for card\n"); return; } /* * Create and load the DMA map for the DMA area. */ if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { aprint_error_dev(sc->sc_dev, "couldn't create DMA map\n"); bus_dmamem_free(dmat, &seg, rseg); return; } if (bus_dmamap_load(dmat, lesc->sc_dmam, sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { aprint_error_dev(sc->sc_dev, "coundn't load DMA map\n"); bus_dmamem_free(dmat, &seg, rseg); return; } sc->sc_conf3 = 0; sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; sc->sc_memsize = LE_ISA_MEMSIZE; sc->sc_copytodesc = lance_copytobuf_contig; sc->sc_copyfromdesc = lance_copyfrombuf_contig; sc->sc_copytobuf = lance_copytobuf_contig; sc->sc_copyfrombuf = lance_copyfrombuf_contig; sc->sc_zerobuf = lance_zerobuf_contig; sc->sc_rdcsr = le_isa_rdcsr; sc->sc_wrcsr = le_isa_wrcsr; sc->sc_hwinit = NULL; if (ia->ia_ndrq > 0) { if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq[0].ir_drq)) != 0) { aprint_error_dev(sc->sc_dev, "unable to cascade DRQ, error = %d\n", error); return; } } lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_NET, le_isa_intredge, sc); aprint_normal("%s", device_xname(sc->sc_dev)); am7990_config(&lesc->sc_am7990); } /* * Controller interrupt. */ int le_isa_intredge(void *arg) { if (am7990_intr(arg) == 0) return (0); for (;;) if (am7990_intr(arg) == 0) return (1); }